Water-closet tank.



AVAILABLE COPY J. M. SHAFFEIL WATER CLOSET TANK.

APPLICATION FILED 050.13. 19w.

1,261,446. PatentedApr. 2,1918.

UNITED STATES PATENT OFFICE.

JOHN M. SHAFFER, 0F BEAVER FALLS, PENNSYLVANIA, ASSIGNOR T0 UNITEDSTATES SANITARY MANUFACTURING COMPANY, OF PITTSBURGH, PENNSYLVANIA, ACOR- PORATION OF PENNSYLVANIA.

WATER-CLOSET TANK.

Specification of Letters Patent.

Patented Apr. 2, 1918.

7 To all whom it may concern:

.Beaver and State of Pennsylvania, have invented a new and usefulImprovement in Water-Closet Tanks, of which the following is a full,clear, and exact description, reference being had to the accompanyingdrawings, forming part of this specification, in which Figure 1 is aperspective view of a tank embodying my invention; and

Fig. 2 is a section on the line IIII of Fig. 1.

My invention has relation to water closet tanks, and is designed toprovide a metal tank which can be readily manufactured by casting andwhich will be free from projecting flanges of a character likely tobecome broken. My invention also provides a tank in which the supportingmeans are concealed and which has an effective wall bearing.

Referring to the accompanying drawings, in which I have shown thepreferred embodiment of my invention, the numeral 2 designates a castmetal tank which, in so far as its general shape is concerned, may be ofany approved design. In accordance with my invention, the rear wall ofthe tank is cast with the centrally inset portion 3,

havin at its top the overhanging shelf 4,

from which depend the lugs 55, which are designed to engage the usualhangers which support the tank from a wall.

It will be noted that instead of the usual rearwardly projecting flangesat the rear corners of the tank between which the supporting hooks orlugs are formed, I provide the broad wall-bearing surfaces 6, and insetthe rear wall to provide for said lugs, the surfaces 6 extending thefull height of the tank. I-Ieretofore, it has been customary tocasttanks of this character with avertical flange at each edge, andbetween which the attaching lugs have been placed. In order to giveproper draft in molding, these flanges have been made of downwardlytapering form, thus giving unequal thickness of metal which isobjectionable in the enameling operations. The flanges have alsonecessarily terminated short of the bottom of the tank, thus leavingunsightly openings between the tank and the wall at these points.Furthermore, such flanges frequently become broken in cleaning thecastings and in subsequent handling, shipping and crating.

My present invention overcomes all these difliculties, provides a tankin which the metal can be of substantially uniform thickness throughout;which is neat in appearance; which is not likely to be broken inhandling and use, and which can be readily manufactured. The broadwall-bearing surfaces 6 give the tank a firm wall bearing.

As above indicated, I do not desire to limit myself to any particulardesign of tank which I have herein shown and described, since thegeneral shape may be widely varied without departing from the spirit andscope of my invention as defined in the appended claims.

I claim:

l. A closet tank having its rear wall formed with an inwardly extendinginset portion, substantially as described.

2. A closet tank having its rear wall formed with an inwardly extendinginset portion, and with a shelf overhanging said inset portion andprovided with attaching means, substantially as described.

3. A closet tank having its rear wall formed with an inwardly extendinginset portion, the portions of said wall at each side of the insetportion forming relatively broad wall-engaging surfaces, substantiallyas described.

In testimony whereof, I have hereunto set my hand.

JOHN M. SHAFFER.

Copies of this patent may be obtained for five cents each, by addressingthe Gbmmissioner of Patents, Was1 ington, I). G.

